Replaceable edge for compaction cleat

ABSTRACT

The wheel of a vehicle for compacting a sanitary land fill site is provided with a series of cleats for both traction and destruction of the material over which the wheel and the vehicle transverses. The cleats are individually welded to the cylindrical periphery of the wheel in a suitable manner and are subject to extreme wear. Each cleat is provided with a replaceable separate section which includes the outer cutting edge of the cleat such that the section may be inverted to present a second relatively sharp wearing edge.

United States Patent [191 Trainor et a1.

1 June 18, 1974 REPLACEABLE EDGE FOR COMPACTION CLEAT [75] Inventors: Maurice J. Trainer, Milwaukee;

Charles F. Riddle, Brookfield, both of Wis.

[73] Assignee: Rexnord Inc., Milwaukee, Wis.

[22] Filed: Oct. 20, 1972 [21] Appl. No.: 299,601

[52] US. Cl. 404/121, 37/141 T, 301/44 R [51] Int. Cl. E0lc 19/26 [58] Field of Search 404/124, 122, 121; 37/141,

37/142; 301/41, 44 A, 44 B, 44 T, 44 R, 554,

[56] References Cited UNITED STATES PATENTS 1,304,375 5/1919 Robinet 301/44 1,539,098 5/1925 Robinson 301/44 B 1,719,576 7/1929 Voit 37/141 T X 2,220,819 11/1940 Johnson 37/141 R 2,242,808 5/1941 Austin 404/121 3,450,013 6/1969 Peterson 404/ 121 X 3,500,562 3/1970 Reinhard 37/141 R 3,601,203 8/1971 Holmstrom 172/719 Primary Examiner-Nile C. Byers, Jr.

[ ABSTRACT The wheel of a vehicle for compacting a sanitary land fill site is provided with a series of cleats for both traction and destruction of the material over which the wheel and the vehicle transverses. The cleats are individually welded to the cylindrical periphery of the wheel in a suitable manner and are subject to extreme wear. Each cleat is provided with a replaceable separate section which includes the outer cutting edge of the cleat such that the section may be inverted to present a second relatively sharp wearing edge.

1 Claim, 8 Drawing Figures 1 REPLACEABLE EDGE FOR COMPACTION CLEAT BACKGROUND OF THE INVENTION 1. Field of the Invention Vehicle wheel for compaction of earth and trash-fill.

2. Description of the Prior Art U.S. Letters Pat. No. 3,463,064 is directed to and shows a vehicle for compacting the trash which is disposed of as sanitary fill. The wheels of the vehicle are provided with cleats of an especially effective configuration.

Replaceable teeth of digging implements or buckets include a replaceable tooth as shown in US. Pat. No. 1,461 ,l 13. The concept shown in this patent as applied to the cleats of wheels for earth compaction or conditioning of sanitary fill has not been practicable or successful. It is the object of the present invention to provide a replaceable cap for the cleat of such wheels and to secure the same with a single central pin or bolt and to include a second, reserve cap which in effect doubles the usefulness of the cleat assembly.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a side elevation of the wheel which is shown in US. Pat. No. 3,463,063.

FIG. 2 is a plan view of a portion of the wheel shown in FIG. 1.

FIG. 3 is an enlarged side elevation of a portion of the wheel and shows two of the blades removed for replacement purposes. The end of one cleat shown in part is broken away to show the cross-section of the cleat.

FIG. 4 is a front elevation of the base of a cleat and showing the blade partially removed.

FIG. 5 is a plan view of the cleat and blade shown in FIG. 4.

FIG. 6 is a front elevation of the cleat shown in FIGS. 4 and 5 with the blade in position.

FIG. 7 is a section taken on line 77 of FIG. 6.

FIG. 8 is a section taken of line 88 of FIG. 3.

SUMMARY THE INVENTION The wheels of a compaction vehicle for operation especially over land fill or trash-fill generally include radially projecting cleats having relatively sharp, transverse working edges which gradually become worn and rounded. A typical vehicle having four wheels has 250 cleats. Each cleat of the present invention comprises a slotted base and a separate reversible double-edged blade which is readily replaced and thus greatly reduces the time and expense of maintenance of the vehicle in this respect.

DESCRIPTION OF THE PREFERRED EMBODIMENT The wheel shown in FIG. 1 includes the outer drum or cylindrical rim 22 and the inner circular spider or bolt ring 23. The center of bolt ring 23 is open to receive therethrough the end of the axle of the vehicle (not shown) which the wheel is to support. For that purpose, ring 23 is provided with a series of bolt holes 26 for mounting wheel 11 onto the hub of the axle by means of conventional stud and lug fasteners. The end face 27 of wheel 11 extends from bolt ring 22 to one edge of rim 22 and may be flat or conical as required by the general configuration of the wheel. A similar end face, not shown, extends from bolt ring 23 to the other edge of rim 22 preferably so that the interior of the wheel is closed and the entry and accumulation of dirt and trash is prevented.

Wheel 11 shown in FIG. 1 is provided with cleats 29 which comprise short lengths of structural steel angles arranged about rim 22 and secured thereto bywelding. Each cleat 29 has sloping forward and rear faces which converge radially outwardly respecting wheel 11 to define a relatively sharp comer or transverse working edge. A preferred arrangement of the cleats is shown in FIG. 2.

The improved cleats 31 of the present invention are shown in FIGS. 3 8 and may be arranged about the periphery of wheel 11 also as shown in FIG. 2. Each cleat 31 comprises a base 33, a blade 35 and a pin 37 which secures blade 35 in place as will be described. The blade 35 is formed of a particularly wear resistant material. As shown, the blade is of a cross-section which is symmetrical respecting two medial planes and of a length equal to the axial length of base 33. The blade includes two spaced oppositely disposed triangular sections 35a and 35b and a central connecting section 350. Their relative dimensions are such that oppositely facing slots are formed on each side of section 350 and between the triangular sections 35a and b.

Base 33 is securely welded to rim 22 and may be welded construction or formed of one or several castings. As shown, base 33 is a single casting which includes the ends 39 and the spaced sloping sides 41. Blade 35 is supported by base 33 between the sides 41 having parts as will be described fitting in the slots of blade 35. The ends 39 of base 33 are recessed as at 39a to fit around the end portions of the triangular section 35b and of the center section 350 of blade 35 so that the blade is moveable endwise and may be removed from base 33 by endwise movement for reversing or replacement.

For normal operation of the vehicle, not shown, the blade is secured against such endwise movement by the pin 37 which is fitted in the hole 45 extending through section 35c of blade 35 and having projecting ends which are disposed in the corresponding indentations 41a of sides 41 of base 33.

Several such pins may be employed but it is believed that one pin should be sufficient. The pin may be a bolt or an expanding type pin which is driven into hole 47 and is thereby frictionally well secured therein.

It should be noted that the ends of pin 37 do not project beyond the general dimensions of the cleat and are thus protected against breakage. However, it is considered significant to the present invention that in normal operation, the indentations 41a are quickly filled and packed with soil or other material well before any losseness of the pin might develop and result in loss of the pin and then looseness of blade 35.

For the support of blade 35, each side 41 of base 33, as viewed in plan, includes two enlarged sections 41b of generally square outline to fit in the respective slot 35c of the blade. The two sections 41b are spaced or separated by the indentation 41a of the four large surfaces of sections 41b facing radially outward respecting wheel 11 provide a firm support for section 35a of blade 35.

The blades 35, as are the cleats 29, are subject to wear such that the entire section 35a becomes rounded as shown by the broken line in FIG. 7. Further wear would include direct wearing of base 33 and should be avoided by timely reversal or replacement as provided for.

Reversal of an individual blade 35 is readily accomplished by driving out pin 37 and then pounding the end of the blade to push it endwise from base 33. Reversing and replacing the blade with section 35b presented outwardly is readily accomplished because of the uniform width of section 350 and the smaller size of section 35a when worn or rounded readily passes through recesses 43 of the ends 39 of base 33.

Generally, a new pin 37 should be used to resecure the reversed blade. Very often, the ends of the blades near the outer edge of rim 22 of a wheel will wear faster than other blades. These blades may be reversed end for end if it appears practicable to do so. Generally, reversing of all the blades of a wheel is most practicable if the vehicle is out of service anyway or if the wheel itself can be removed from the vehicle. Similarly, replacement of all of the wom-out blades at one time is generally the most practicable.

We claim:

1. A vehicle wheel having cleats for conditioning and compacting trash spread over rough terrain as at a land fill site, the wheel having a hub and a cylindrical periphery to which cleats are attached and from which the cleats project, the cleats being positioned circumferentially on the hub parallel to the axis of the wheel, each cleat including a cleat blade holder rigid with the cylindrical periphery of the wheel, a removable and replaceable blade of wear resistant material and means for holding the replaceable blade onto the cleat blade holder, the improvements comprising: the blade including two identical and symmetrical, spaced and oppositely disposed, generally triangular wear tips, the tips being rigid with a central connecting section having a thickness much less than the base of each triangular tip, the cleat blade holder including sides sloping generally at the same angle as the angle of the base of each triangular tip, the cleat blade holder also including a pair of inwardly extending sections each of a shape generally complementary to the space defined by one side of the central connecting section and half of each tip base of the blade, the cleat blade holder being of a configuration providing an opening axially of the hub of the wheel, the opening being of a shape generally complementary to one triangular tip and the central section of the blade for holding the blade onto the cleat blade holder while allowing lengthwise insertion and removal of the blade, indentation grooves in the top central portion of the inwardly extending sections, a hole through the central connection section of the blade positioned to align with the indentation grooves when the blade is fully installed in the cleat blade holder, and a removable pin of a length to extend through the holes into the indentation grooves within the boundaries of the sides of the cleat blade holder for holding the blade for movement in the cleat blade holder axially of the hub of the wheel, the construction being such that material compacted fills the indentation grooves and prevents loss of the pin while the pin can be driven out to remove the blade and reverse either end-to-end or top-tobottom due to the symmetrical construction of the blade and configuration of the cleat blade holder.

3,817,645 June 18, 1.974

Patent No Dated Maurice J. Trainor et a1 Inventor(s) It is certified that error appears in theabove-ddentified patent and that said Letters Patent are hereby corrected as shown below:

Claim 1, column 4, line I, delete 'identical" and substitute similar Signed and sealed this 29th day of October 1974.

(SEAL) Attest:

McCOY M. GIBSON JR. C. MARSHALL DANN Attesting Officer Commissioner of Patents FORM PO-1050 (10-69) I USCOMM-DC e'os'ieeo i US. GOVERNMENT PRINTING OFFICE 1969 0-365-334, 

1. A vehicle wheel having cleats for conditioning and compacting trash spread over rough terrain as at a land fill site, the wheel having a hub and a cylindrical periphery to which cleats are attached and from which the cleats project, the cleats being positioned circumferentially on the hub parallel to the axis of the wheel, each cleat including a cleat blade holder rigid with the cylindrical periphery of the wheel, a removable and replaceable blade of wear resistant material and means for holding the replaceable blade onto the cleat blade holder, the improvements comprising: the blade including two identical and symmetrical, spaced and oppositely disposed, generally triangular wear tips, the tips being rigid with a central connecting section having a thickness much less than the base of each triangular tip, the cleat blade holder including sides sloping generally at the same angle as the angle of the base of each triangular tip, the cleat blade holder also including a pair of inwardly extending sections each of a shape generally complementary to the space defined by one side of the central connecting section and half of each tip base of the blade, the cleat blade holder being of a configuration providing an opening axially of the hub of the wheel, the opening being of a shape generally complementary to one triangular tip and the central section of the blade for holding the blade onto the cleat blade holder while allowing lengthwise insertion and removal of the blade, indentation grooves in the top central portion of the inwardly extending sections, a hole through the central connection section of the blade positioned to align with the indentation grooves when the blade is fully installed in the cleat blade holder, and a removable pin of a length to extend through the holes into the indentation grooves within the boundaries of the sides of the cleat blade holder for holding the blade for movement in the cleat blade holder axially of the hub of the wheel, the construction being such that material compacted fills the indentation grooves and prevents loss of the pin while the pin can be driven out to remove the blade and reverse either end-toend or top-to-bottom due to the symmetrical construction of the blade and configuration of the cleat blade holder. 